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| abbreviations | R | X | IUPAC chemical names |
|---|---|---|---|
| BA-a | Ph | (CH3)2C | 2,2-bis(3,4-dihydro-3-phenyl-2H-1,3-benzoxazine)propane |
| BF-a | Ph | CH2 | 2,2-bis(3,4-dihydro-3-phenyl-2H-1,3-benzoxazine)methane |
| BT-a | Ph | S | 3,3-bis(3,4-dihydro-3-phenyl-2H-1,3-benzoxazine) sulfide |
